//
//  AppDelegate.swift
//  pip_swift
//
//  Created by 无夜之星辰 on 2021/5/26.
//

import UIKit

@main
class AppDelegate: UIResponder, UIApplicationDelegate {
    
    var bgTask: UIBackgroundTaskIdentifier!
    
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        return true
    }
    
    func applicationDidEnterBackground(_ application: UIApplication) {
        let app = UIApplication.shared
        bgTask = app.beginBackgroundTask(expirationHandler: { [weak self] in
            if let strongSelf = self {
                app.endBackgroundTask(strongSelf.bgTask)
                strongSelf.bgTask = UIBackgroundTaskIdentifier.invalid
            }
        })
        DispatchQueue.global().async {
            app.endBackgroundTask(self.bgTask)
            self.bgTask = UIBackgroundTaskIdentifier.invalid
        }
    }
    
    // MARK: UISceneSession Lifecycle
    
    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
        // Called when a new scene session is being created.
        // Use this method to select a configuration to create the new scene with.
        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
    }
    
    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
        // Called when the user discards a scene session.
        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
    }
    
    
}

